Derrick needs to figure out how he’s doing on his test scores so far this year. you can by calculating the mean and the median to get an overall picture of his scores. below are all of his scores: 25, 40, 68, 85, 95, 98, 70, 78, 85, 100 what is derrick’s mean test score so far? what is derrick’s median test score so far? which gives a better picture of his scores?

Sasha drank 8 bottles of water everyday for a week. how many bottles of water did she drink in total?

I've been working on this for a few days and i just don't understand, it's due in a few hours. you.the direction of a vector is defined as the angle of the vector in relation to a horizontal line. as a standard, this angle is measured counterclockwise from the positive x-axis. the direction or angle of v in the diagram is α.part a: how can you use trigonometric ratios to calculate the direction α of a general vector v = < x, y> similar to the diagram? part bsuppose that vector v lies in quadrant ii, quadrant iii, or quadrant iv. how can you use trigonometric ratios to calculate the direction (i.e., angle) of the vector in each of these quadrants with respect to the positive x-axis? the angle between the vector and the positive x-axis will be greater than 90 degrees in each case.part cnow try a numerical problem. what is the direction of the vector w = < -1, 6 > ?

Let f(x) = 1/x^2 (a) use the definition of the derivatve to find f'(x). (b) find the equation of the tangent line at x=2